Make VM state tracking to be independent of logging and profiling.

src/platform-linux.cc

 // Copyright 2006-2008 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 720 matching lines @@
   TickSample* sample = CpuProfiler::TickSampleEvent();
   if (sample == NULL) return;
   sample->pc = NULL;  // Impossible value if sampling succeeds.
   sample->frames_count = 0;
 #else
   TickSample sample_obj;
   TickSample* sample = &sample_obj;
 #endif
 
   // We always sample the VM state.
-  sample->state = Logger::state();
+  sample->state = VMState::current_state();
   // If profiling, we extract the current pc and sp.
   if (active_sampler_->IsProfiling()) {
     // Extracting the sample from the context is extremely machine dependent.
     ucontext_t* ucontext = reinterpret_cast<ucontext_t*>(context);
     mcontext_t& mcontext = ucontext->uc_mcontext;
 #if V8_HOST_ARCH_IA32
     sample->pc = reinterpret_cast<Address>(mcontext.gregs[REG_EIP]);
     sample->sp = reinterpret_cast<Address>(mcontext.gregs[REG_ESP]);
     sample->fp = reinterpret_cast<Address>(mcontext.gregs[REG_EBP]);
 #elif V8_HOST_ARCH_X64
@@ skipping 88 matching lines @@
 
   // This sampler is no longer the active sampler.
   active_sampler_ = NULL;
   active_ = false;
 }
 
 
 #endif  // ENABLE_LOGGING_AND_PROFILING
 
 } }  // namespace v8::internal